tests : model metadata loading from huggingface (#19796)
* Add model metadata loading from huggingface for use with other tests * Add incremental chunking instead of full redownload, fix caching issue and add warning when it fails * Add support for split models, load metadata from each individual split file, also avoid mmproj * Code cleanup, revert incremental downloading * Only compile when cpp-httplib has SSL support * Fix formatting
This commit is contained in:
parent
ecbcb7ea9d
commit
d979f2b176
|
|
@ -257,6 +257,21 @@ set(LLAMA_TEST_NAME test-mtmd-c-api)
|
|||
llama_build_and_test(test-mtmd-c-api.c)
|
||||
target_link_libraries(${LLAMA_TEST_NAME} PRIVATE mtmd)
|
||||
|
||||
# GGUF model data fetcher library for tests that need real model metadata
|
||||
# Only compile when cpp-httplib has SSL support (CPPHTTPLIB_OPENSSL_SUPPORT)
|
||||
if (TARGET cpp-httplib)
|
||||
get_target_property(_cpp_httplib_defs cpp-httplib INTERFACE_COMPILE_DEFINITIONS)
|
||||
if (_cpp_httplib_defs MATCHES "CPPHTTPLIB_OPENSSL_SUPPORT")
|
||||
add_library(gguf-model-data STATIC gguf-model-data.cpp)
|
||||
target_link_libraries(gguf-model-data PRIVATE common cpp-httplib)
|
||||
target_include_directories(gguf-model-data PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
|
||||
|
||||
add_executable(test-gguf-model-data test-gguf-model-data.cpp)
|
||||
target_link_libraries(test-gguf-model-data PRIVATE gguf-model-data common)
|
||||
llama_test(test-gguf-model-data LABEL "model")
|
||||
endif()
|
||||
endif()
|
||||
|
||||
# dummy executable - not installed
|
||||
get_filename_component(TEST_TARGET test-c.c NAME_WE)
|
||||
add_executable(${TEST_TARGET} test-c.c)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,613 @@
|
|||
// GGUF binary parser adapted from the huggingface/gguf package.
|
||||
// Reference: https://github.com/huggingface/huggingface.js
|
||||
|
||||
#include "gguf-model-data.h"
|
||||
|
||||
#include "common.h"
|
||||
#include "gguf.h"
|
||||
|
||||
#include <algorithm>
|
||||
#include <cstdio>
|
||||
#include <cstring>
|
||||
#include <filesystem>
|
||||
#include <fstream>
|
||||
|
||||
#include "http.h"
|
||||
#define JSON_ASSERT GGML_ASSERT
|
||||
#include <nlohmann/json.hpp>
|
||||
|
||||
// Equivalent of RangeView
|
||||
struct gguf_buf_reader {
|
||||
const char * data;
|
||||
size_t size;
|
||||
size_t pos;
|
||||
|
||||
gguf_buf_reader(const std::vector<char> & buf) : data(buf.data()), size(buf.size()), pos(0) {}
|
||||
|
||||
bool has_n_bytes(size_t n) const {
|
||||
return pos + n <= size;
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
bool read_val(T & out) {
|
||||
if (!has_n_bytes(sizeof(T))) {
|
||||
return false;
|
||||
}
|
||||
memcpy(&out, data + pos, sizeof(T));
|
||||
pos += sizeof(T);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool read_str(std::string & out) {
|
||||
uint64_t len;
|
||||
if (!read_val(len)) {
|
||||
return false;
|
||||
}
|
||||
if (!has_n_bytes((size_t)len)) {
|
||||
return false;
|
||||
}
|
||||
out.assign(data + pos, (size_t)len);
|
||||
pos += (size_t)len;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool skip(size_t n) {
|
||||
if (!has_n_bytes(n)) {
|
||||
return false;
|
||||
}
|
||||
pos += n;
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
static size_t gguf_val_type_size(int32_t vtype) {
|
||||
switch (vtype) {
|
||||
case GGUF_TYPE_UINT8: return 1;
|
||||
case GGUF_TYPE_INT8: return 1;
|
||||
case GGUF_TYPE_UINT16: return 2;
|
||||
case GGUF_TYPE_INT16: return 2;
|
||||
case GGUF_TYPE_UINT32: return 4;
|
||||
case GGUF_TYPE_INT32: return 4;
|
||||
case GGUF_TYPE_FLOAT32: return 4;
|
||||
case GGUF_TYPE_BOOL: return 1;
|
||||
case GGUF_TYPE_UINT64: return 8;
|
||||
case GGUF_TYPE_INT64: return 8;
|
||||
case GGUF_TYPE_FLOAT64: return 8;
|
||||
default: return 0; // string/array handled separately
|
||||
}
|
||||
}
|
||||
|
||||
// Equivalent of readMetadataValue(), skips unused values rather than storing
|
||||
static bool gguf_skip_value(gguf_buf_reader & r, int32_t vtype) {
|
||||
if (vtype == GGUF_TYPE_STRING) {
|
||||
std::string tmp;
|
||||
return r.read_str(tmp);
|
||||
}
|
||||
if (vtype == GGUF_TYPE_ARRAY) {
|
||||
int32_t elem_type;
|
||||
uint64_t count;
|
||||
if (!r.read_val(elem_type)) {
|
||||
return false;
|
||||
}
|
||||
if (!r.read_val(count)) {
|
||||
return false;
|
||||
}
|
||||
if (elem_type == GGUF_TYPE_STRING) {
|
||||
for (uint64_t i = 0; i < count; i++) {
|
||||
std::string tmp;
|
||||
if (!r.read_str(tmp)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
if (elem_type == GGUF_TYPE_ARRAY) {
|
||||
// nested arrays - recurse
|
||||
for (uint64_t i = 0; i < count; i++) {
|
||||
if (!gguf_skip_value(r, GGUF_TYPE_ARRAY)) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
size_t elem_sz = gguf_val_type_size(elem_type);
|
||||
if (elem_sz == 0) {
|
||||
return false;
|
||||
}
|
||||
return r.skip((size_t)count * elem_sz);
|
||||
}
|
||||
size_t sz = gguf_val_type_size(vtype);
|
||||
if (sz == 0) {
|
||||
return false;
|
||||
}
|
||||
return r.skip(sz);
|
||||
}
|
||||
|
||||
static bool gguf_read_uint32_val(gguf_buf_reader & r, int32_t vtype, uint32_t & out) {
|
||||
if (vtype == GGUF_TYPE_UINT8) {
|
||||
uint8_t v;
|
||||
if (!r.read_val(v)) {
|
||||
return false;
|
||||
}
|
||||
out = v;
|
||||
return true;
|
||||
}
|
||||
if (vtype == GGUF_TYPE_INT8) {
|
||||
int8_t v;
|
||||
if (!r.read_val(v)) {
|
||||
return false;
|
||||
}
|
||||
out = (uint32_t)v;
|
||||
return true;
|
||||
}
|
||||
if (vtype == GGUF_TYPE_UINT16) {
|
||||
uint16_t v;
|
||||
if (!r.read_val(v)) {
|
||||
return false;
|
||||
}
|
||||
out = v;
|
||||
return true;
|
||||
}
|
||||
if (vtype == GGUF_TYPE_INT16) {
|
||||
int16_t v;
|
||||
if (!r.read_val(v)) {
|
||||
return false;
|
||||
}
|
||||
out = (uint32_t)v;
|
||||
return true;
|
||||
}
|
||||
if (vtype == GGUF_TYPE_UINT32) {
|
||||
uint32_t v;
|
||||
if (!r.read_val(v)) {
|
||||
return false;
|
||||
}
|
||||
out = v;
|
||||
return true;
|
||||
}
|
||||
if (vtype == GGUF_TYPE_INT32) {
|
||||
int32_t v;
|
||||
if (!r.read_val(v)) {
|
||||
return false;
|
||||
}
|
||||
out = (uint32_t)v;
|
||||
return true;
|
||||
}
|
||||
if (vtype == GGUF_TYPE_UINT64) {
|
||||
uint64_t v;
|
||||
if (!r.read_val(v)) {
|
||||
return false;
|
||||
}
|
||||
out = (uint32_t)v;
|
||||
return true;
|
||||
}
|
||||
if (vtype == GGUF_TYPE_INT64) {
|
||||
int64_t v;
|
||||
if (!r.read_val(v)) {
|
||||
return false;
|
||||
}
|
||||
out = (uint32_t)v;
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
// Follows the same header -> KV -> tensor parsing sequence as gguf() huggingface/gguf
|
||||
static std::optional<gguf_remote_model> gguf_parse_meta(const std::vector<char> & buf) {
|
||||
gguf_buf_reader r(buf);
|
||||
|
||||
// Header: magic(4) + version(4) + tensor_count(8) + kv_count(8) = 24 bytes minimum
|
||||
uint32_t magic_raw;
|
||||
if (!r.read_val(magic_raw)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
if (memcmp(&magic_raw, "GGUF", 4) != 0) {
|
||||
fprintf(stderr, "gguf_parse_meta: invalid magic\n");
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
uint32_t version;
|
||||
if (!r.read_val(version)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
if (version < 2 || version > 3) {
|
||||
fprintf(stderr, "gguf_parse_meta: unsupported version %u\n", version);
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
int64_t tensor_count_raw;
|
||||
int64_t kv_count_raw;
|
||||
if (!r.read_val(tensor_count_raw)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
if (!r.read_val(kv_count_raw)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
uint64_t tensor_count = (uint64_t)tensor_count_raw;
|
||||
uint64_t kv_count = (uint64_t)kv_count_raw;
|
||||
|
||||
gguf_remote_model model;
|
||||
|
||||
std::string arch_prefix;
|
||||
|
||||
// Parse KV pairs
|
||||
for (uint64_t i = 0; i < kv_count; i++) {
|
||||
std::string key;
|
||||
if (!r.read_str(key)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
int32_t vtype;
|
||||
if (!r.read_val(vtype)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
if (key == "general.architecture" && vtype == GGUF_TYPE_STRING) {
|
||||
if (!r.read_str(model.architecture)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
arch_prefix = model.architecture + ".";
|
||||
continue;
|
||||
}
|
||||
|
||||
// Extract split.count for proper handling of split files
|
||||
if (key == "split.count") {
|
||||
uint32_t v;
|
||||
if (!gguf_read_uint32_val(r, vtype, v)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
model.n_split = (uint16_t)v;
|
||||
continue;
|
||||
}
|
||||
|
||||
// Extract split.tensors.count so we can verify we have all tensors
|
||||
if (key == "split.tensors.count") {
|
||||
uint32_t v;
|
||||
if (!gguf_read_uint32_val(r, vtype, v)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
model.n_split_tensors = v;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!arch_prefix.empty()) {
|
||||
uint32_t * target = nullptr;
|
||||
|
||||
if (key == arch_prefix + "embedding_length") { target = &model.n_embd; }
|
||||
else if (key == arch_prefix + "feed_forward_length") { target = &model.n_ff; }
|
||||
else if (key == arch_prefix + "block_count") { target = &model.n_layer; }
|
||||
else if (key == arch_prefix + "attention.head_count") { target = &model.n_head; }
|
||||
else if (key == arch_prefix + "attention.head_count_kv") { target = &model.n_head_kv; }
|
||||
else if (key == arch_prefix + "expert_count") { target = &model.n_expert; }
|
||||
else if (key == arch_prefix + "attention.key_length") { target = &model.n_embd_head_k; }
|
||||
else if (key == arch_prefix + "attention.value_length") { target = &model.n_embd_head_v; }
|
||||
|
||||
if (target) {
|
||||
if (!gguf_read_uint32_val(r, vtype, *target)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (!gguf_skip_value(r, vtype)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
}
|
||||
|
||||
// Parse tensor info entries
|
||||
model.tensors.reserve((size_t)tensor_count);
|
||||
for (uint64_t i = 0; i < tensor_count; i++) {
|
||||
gguf_remote_tensor t;
|
||||
|
||||
if (!r.read_str(t.name)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
if (!r.read_val(t.n_dims)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
if (t.n_dims > 4) {
|
||||
fprintf(stderr, "gguf_parse_meta: tensor '%s' has %u dims (max 4)\n", t.name.c_str(), t.n_dims);
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
for (uint32_t d = 0; d < t.n_dims; d++) {
|
||||
if (!r.read_val(t.ne[d])) {
|
||||
return std::nullopt;
|
||||
}
|
||||
}
|
||||
|
||||
int32_t type_raw;
|
||||
if (!r.read_val(type_raw)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
t.type = (ggml_type)type_raw;
|
||||
|
||||
uint64_t offset;
|
||||
if (!r.read_val(offset)) {
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
// Infer n_vocab from token_embd.weight
|
||||
if (t.name == "token_embd.weight") {
|
||||
model.n_vocab = (uint32_t)t.ne[1];
|
||||
}
|
||||
|
||||
model.tensors.push_back(std::move(t));
|
||||
}
|
||||
|
||||
return model;
|
||||
}
|
||||
|
||||
// cache handling for local download
|
||||
static std::string get_default_cache_dir() {
|
||||
return fs_get_cache_directory() + "gguf-headers/";
|
||||
}
|
||||
|
||||
static std::string sanitize_for_path(const std::string & s) {
|
||||
std::string out = s;
|
||||
for (char & c : out) {
|
||||
if (c == '/' || c == '\\' || c == ':') {
|
||||
c = '_';
|
||||
}
|
||||
}
|
||||
return out;
|
||||
}
|
||||
|
||||
static bool read_file(const std::string & path, std::vector<char> & out) {
|
||||
std::ifstream f(path, std::ios::binary | std::ios::ate);
|
||||
if (!f.good()) {
|
||||
return false;
|
||||
}
|
||||
auto sz = f.tellg();
|
||||
if (sz <= 0) {
|
||||
return false;
|
||||
}
|
||||
out.resize((size_t)sz);
|
||||
f.seekg(0);
|
||||
f.read(out.data(), sz);
|
||||
return f.good();
|
||||
}
|
||||
|
||||
static bool write_file(const std::string & path, const std::vector<char> & data) {
|
||||
std::ofstream f(path, std::ios::binary | std::ios::trunc);
|
||||
if (!f.good()) {
|
||||
return false;
|
||||
}
|
||||
f.write(data.data(), (std::streamsize)data.size());
|
||||
return f.good();
|
||||
}
|
||||
|
||||
// HuggingFace file auto-detection and HTTP download
|
||||
static std::pair<long, std::vector<char>> gguf_http_get(
|
||||
const std::string & url,
|
||||
const httplib::Headers & headers = {},
|
||||
int timeout_sec = 60) {
|
||||
try {
|
||||
auto [cli, parts] = common_http_client(url);
|
||||
|
||||
if (timeout_sec > 0) {
|
||||
cli.set_read_timeout(timeout_sec, 0);
|
||||
cli.set_write_timeout(timeout_sec, 0);
|
||||
}
|
||||
cli.set_connection_timeout(30, 0);
|
||||
|
||||
std::vector<char> body;
|
||||
auto res = cli.Get(parts.path, headers,
|
||||
[&](const char * data, size_t len) {
|
||||
body.insert(body.end(), data, data + len);
|
||||
return true;
|
||||
}, nullptr);
|
||||
|
||||
if (!res) {
|
||||
fprintf(stderr, "gguf_fetch: HTTP request failed for %s (error %d)\n",
|
||||
url.c_str(), (int)res.error());
|
||||
return {-1, {}};
|
||||
}
|
||||
return {res->status, std::move(body)};
|
||||
} catch (const std::exception & e) {
|
||||
fprintf(stderr, "gguf_fetch: HTTP error: %s\n", e.what());
|
||||
return {-1, {}};
|
||||
}
|
||||
}
|
||||
|
||||
// Find the filename for given repo/quant.
|
||||
// For split models, returns the first shard (the one containing "00001-of-")
|
||||
// split_prefix is set to the portion before "-00001-of-XXXXX.gguf" when a split file is found
|
||||
static std::string detect_gguf_filename(const std::string & repo, const std::string & quant,
|
||||
std::string & split_prefix) {
|
||||
split_prefix.clear();
|
||||
std::string api_url = "https://huggingface.co/api/models/" + repo;
|
||||
|
||||
auto [code, body] = gguf_http_get(api_url, {}, 30);
|
||||
if (code != 200 || body.empty()) {
|
||||
fprintf(stderr, "gguf_fetch: failed to query HF API for %s (HTTP %ld)\n", repo.c_str(), code);
|
||||
return "";
|
||||
}
|
||||
|
||||
nlohmann::json j;
|
||||
try {
|
||||
j = nlohmann::json::parse(body.begin(), body.end());
|
||||
} catch (...) {
|
||||
fprintf(stderr, "gguf_fetch: failed to parse HF API response\n");
|
||||
return "";
|
||||
}
|
||||
|
||||
if (!j.contains("siblings") || !j["siblings"].is_array()) {
|
||||
fprintf(stderr, "gguf_fetch: unexpected HF API response format\n");
|
||||
return "";
|
||||
}
|
||||
|
||||
std::vector<std::string> matches;
|
||||
std::string quant_upper = quant;
|
||||
for (char & c : quant_upper) { c = (char)toupper(c); }
|
||||
|
||||
for (const auto & sibling : j["siblings"]) {
|
||||
if (!sibling.contains("rfilename")) { continue; }
|
||||
std::string fname = sibling["rfilename"].get<std::string>();
|
||||
if (fname.size() < 5 || fname.substr(fname.size() - 5) != ".gguf") {
|
||||
continue;
|
||||
}
|
||||
|
||||
std::string fname_upper = fname;
|
||||
for (char & c : fname_upper) { c = (char)toupper(c); }
|
||||
if (fname_upper.find(quant_upper) != std::string::npos) {
|
||||
matches.push_back(fname);
|
||||
}
|
||||
}
|
||||
|
||||
if (matches.empty()) {
|
||||
fprintf(stderr, "gguf_fetch: no .gguf files matching '%s' in %s\n", quant.c_str(), repo.c_str());
|
||||
return "";
|
||||
}
|
||||
|
||||
std::sort(matches.begin(), matches.end());
|
||||
|
||||
// Prefer non-split, non-supplementary file
|
||||
for (const auto & m : matches) {
|
||||
if (m.find("-of-") == std::string::npos && m.find("mmproj") == std::string::npos) {
|
||||
return m;
|
||||
}
|
||||
}
|
||||
|
||||
// Return the first shard (00001-of-) and extract the prefix
|
||||
for (const auto & m : matches) {
|
||||
auto pos = m.find("-00001-of-");
|
||||
if (pos != std::string::npos) {
|
||||
split_prefix = m.substr(0, pos);
|
||||
return m;
|
||||
}
|
||||
}
|
||||
|
||||
return matches[0];
|
||||
}
|
||||
|
||||
static std::optional<gguf_remote_model> fetch_and_parse(
|
||||
const std::string & repo,
|
||||
const std::string & filename,
|
||||
const std::string & cache_path) {
|
||||
std::string url = "https://huggingface.co/" + repo + "/resolve/main/" + filename;
|
||||
|
||||
// Progressive download inspired by RangeView.fetchChunk()
|
||||
// Start at 2MB, double each time, cap at 64MB
|
||||
size_t chunk_size = 2 * 1024 * 1024;
|
||||
const size_t max_chunk = 64 * 1024 * 1024;
|
||||
|
||||
while (chunk_size <= max_chunk) {
|
||||
fprintf(stderr, "gguf_fetch: downloading %zu bytes from %s\n", chunk_size, filename.c_str());
|
||||
|
||||
char range_buf[64];
|
||||
snprintf(range_buf, sizeof(range_buf), "bytes=0-%zu", chunk_size - 1);
|
||||
httplib::Headers headers = {{"Range", range_buf}};
|
||||
|
||||
auto [code, body] = gguf_http_get(url, headers, 120);
|
||||
if (code != 200 && code != 206) {
|
||||
fprintf(stderr, "gguf_fetch: HTTP %ld fetching %s\n", code, url.c_str());
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
if (body.empty()) {
|
||||
fprintf(stderr, "gguf_fetch: empty response\n");
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
auto result = gguf_parse_meta(body);
|
||||
if (result.has_value()) {
|
||||
write_file(cache_path, body);
|
||||
return result;
|
||||
}
|
||||
|
||||
if (code == 200) {
|
||||
fprintf(stderr, "gguf_fetch: server returned full response but metadata parse failed\n");
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
// Parse failed, try larger chunk
|
||||
chunk_size *= 2;
|
||||
}
|
||||
|
||||
fprintf(stderr, "gguf_fetch: metadata exceeds 64MB, giving up\n");
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
// Try cache first, then fetch and parse a single GGUF shard.
|
||||
static std::optional<gguf_remote_model> fetch_or_cached(
|
||||
const std::string & repo,
|
||||
const std::string & filename,
|
||||
const std::string & cdir,
|
||||
const std::string & repo_part) {
|
||||
std::string fname_part = sanitize_for_path(filename);
|
||||
std::string cache_path = cdir + "/" + repo_part + "--" + fname_part + ".partial";
|
||||
|
||||
{
|
||||
std::vector<char> cached;
|
||||
if (std::filesystem::exists(cache_path) && read_file(cache_path, cached)) {
|
||||
auto result = gguf_parse_meta(cached);
|
||||
if (result.has_value()) {
|
||||
fprintf(stderr, "gguf_fetch: loaded from cache: %s\n", cache_path.c_str());
|
||||
return result;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fs_create_directory_with_parents(cdir);
|
||||
return fetch_and_parse(repo, filename, cache_path);
|
||||
}
|
||||
|
||||
std::optional<gguf_remote_model> gguf_fetch_model_meta(
|
||||
const std::string & repo,
|
||||
const std::string & quant,
|
||||
const std::string & cache_dir) {
|
||||
std::string cdir = cache_dir.empty() ? get_default_cache_dir() : cache_dir;
|
||||
std::string repo_part = sanitize_for_path(repo);
|
||||
|
||||
std::string split_prefix;
|
||||
std::string filename = detect_gguf_filename(repo, quant, split_prefix);
|
||||
if (filename.empty()) {
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
auto model_opt = fetch_or_cached(repo, filename, cdir, repo_part);
|
||||
if (!model_opt.has_value()) {
|
||||
fprintf(stderr, "gguf_fetch: failed to fetch %s\n", filename.c_str());
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
auto & model = model_opt.value();
|
||||
|
||||
// If the model is split across multiple files we need to fetch the remaining shards metadata
|
||||
if (model.n_split > 1) {
|
||||
if (split_prefix.empty()) {
|
||||
fprintf(stderr, "gguf_fetch: model reports %u splits but filename has no split pattern\n", model.n_split);
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
fprintf(stderr, "gguf_fetch: split model with %u shards, fetching remaining %u...\n",
|
||||
model.n_split, model.n_split - 1);
|
||||
|
||||
for (int i = 2; i <= model.n_split; i++) {
|
||||
char num_buf[6], total_buf[6];
|
||||
snprintf(num_buf, sizeof(num_buf), "%05d", i);
|
||||
snprintf(total_buf, sizeof(total_buf), "%05d", (int)model.n_split);
|
||||
std::string shard_name = split_prefix + "-" + num_buf + "-of-" + total_buf + ".gguf";
|
||||
|
||||
auto shard = fetch_or_cached(repo, shard_name, cdir, repo_part);
|
||||
if (!shard.has_value()) {
|
||||
fprintf(stderr, "gguf_fetch: failed to fetch shard %d: %s\n", i, shard_name.c_str());
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
model.tensors.insert(model.tensors.end(),
|
||||
std::make_move_iterator(shard->tensors.begin()),
|
||||
std::make_move_iterator(shard->tensors.end()));
|
||||
}
|
||||
|
||||
if (model.n_split_tensors > 0 && model.tensors.size() != model.n_split_tensors) {
|
||||
fprintf(stderr, "gguf_fetch: WARNING: expected %u tensors from split.tensors.count, got %zu\n",
|
||||
model.n_split_tensors, model.tensors.size());
|
||||
}
|
||||
}
|
||||
|
||||
return model_opt;
|
||||
}
|
||||
|
|
@ -0,0 +1,42 @@
|
|||
#pragma once
|
||||
|
||||
#include "ggml.h"
|
||||
|
||||
#include <cstdint>
|
||||
#include <optional>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
|
||||
struct gguf_remote_tensor {
|
||||
std::string name;
|
||||
ggml_type type = GGML_TYPE_F32;
|
||||
int64_t ne[4] = {1, 1, 1, 1}; // dimensions, unused dims = 1
|
||||
uint32_t n_dims = 0;
|
||||
};
|
||||
|
||||
struct gguf_remote_model {
|
||||
// Selected KV metadata
|
||||
std::string architecture; // general.architecture
|
||||
uint32_t n_embd = 0; // <arch>.embedding_length
|
||||
uint32_t n_ff = 0; // <arch>.feed_forward_length
|
||||
uint32_t n_vocab = 0; // inferred from token_embd.weight ne[1]
|
||||
uint32_t n_layer = 0; // <arch>.block_count
|
||||
uint32_t n_head = 0; // <arch>.attention.head_count
|
||||
uint32_t n_head_kv = 0; // <arch>.attention.head_count_kv
|
||||
uint32_t n_expert = 0; // <arch>.expert_count (0 if absent)
|
||||
uint32_t n_embd_head_k = 0; // <arch>.attention.key_length
|
||||
uint32_t n_embd_head_v = 0; // <arch>.attention.value_length
|
||||
uint16_t n_split = 0; // split.count (0 = not split)
|
||||
uint32_t n_split_tensors = 0; // split.tensors.count (0 if not split)
|
||||
|
||||
std::vector<gguf_remote_tensor> tensors;
|
||||
};
|
||||
|
||||
// Fetch model metadata from HuggingFace with local caching.
|
||||
// repo: e.g., "ggml-org/Qwen3-32B-GGUF"
|
||||
// quant: e.g., "Q8_0" -- auto-detects filename (including first shard of split models)
|
||||
// Returns nullopt if download fails or network is unavailable.
|
||||
std::optional<gguf_remote_model> gguf_fetch_model_meta(
|
||||
const std::string & repo,
|
||||
const std::string & quant = "Q8_0",
|
||||
const std::string & cache_dir = ""); // empty = default
|
||||
|
|
@ -0,0 +1,121 @@
|
|||
#include "gguf-model-data.h"
|
||||
|
||||
#include <cstdio>
|
||||
|
||||
#define TEST_ASSERT(cond, msg) \
|
||||
do { \
|
||||
if (!(cond)) { \
|
||||
fprintf(stderr, "FAIL: %s (line %d): %s\n", #cond, __LINE__, msg); \
|
||||
return 1; \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
int main() {
|
||||
fprintf(stderr, "=== test-gguf-model-data ===\n");
|
||||
|
||||
// Fetch Qwen3-0.6B Q8_0 metadata
|
||||
auto result = gguf_fetch_model_meta("ggml-org/Qwen3-0.6B-GGUF", "Q8_0");
|
||||
|
||||
if (!result.has_value()) {
|
||||
fprintf(stderr, "SKIP: could not fetch model metadata (no network or HTTP disabled)\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
const auto & model = result.value();
|
||||
|
||||
fprintf(stderr, "Architecture: %s\n", model.architecture.c_str());
|
||||
fprintf(stderr, "n_embd: %u\n", model.n_embd);
|
||||
fprintf(stderr, "n_ff: %u\n", model.n_ff);
|
||||
fprintf(stderr, "n_vocab: %u\n", model.n_vocab);
|
||||
fprintf(stderr, "n_layer: %u\n", model.n_layer);
|
||||
fprintf(stderr, "n_head: %u\n", model.n_head);
|
||||
fprintf(stderr, "n_head_kv: %u\n", model.n_head_kv);
|
||||
fprintf(stderr, "n_expert: %u\n", model.n_expert);
|
||||
fprintf(stderr, "n_embd_head_k: %u\n", model.n_embd_head_k);
|
||||
fprintf(stderr, "n_embd_head_v: %u\n", model.n_embd_head_v);
|
||||
fprintf(stderr, "tensors: %zu\n", model.tensors.size());
|
||||
|
||||
// Verify architecture
|
||||
TEST_ASSERT(model.architecture == "qwen3", "expected architecture 'qwen3'");
|
||||
|
||||
// Verify key dimensions (Qwen3-0.6B)
|
||||
TEST_ASSERT(model.n_layer == 28, "expected n_layer == 28");
|
||||
TEST_ASSERT(model.n_embd == 1024, "expected n_embd == 1024");
|
||||
TEST_ASSERT(model.n_head == 16, "expected n_head == 16");
|
||||
TEST_ASSERT(model.n_head_kv == 8, "expected n_head_kv == 8");
|
||||
TEST_ASSERT(model.n_expert == 0, "expected n_expert == 0 (not MoE)");
|
||||
TEST_ASSERT(model.n_vocab == 151936, "expected n_vocab == 151936");
|
||||
|
||||
// Verify tensor count
|
||||
TEST_ASSERT(model.tensors.size() == 311, "expected tensor count == 311");
|
||||
|
||||
// Verify known tensor names exist
|
||||
bool found_attn_q = false;
|
||||
bool found_token_embd = false;
|
||||
bool found_output_norm = false;
|
||||
for (const auto & t : model.tensors) {
|
||||
if (t.name == "blk.0.attn_q.weight") {
|
||||
found_attn_q = true;
|
||||
}
|
||||
if (t.name == "token_embd.weight") {
|
||||
found_token_embd = true;
|
||||
}
|
||||
if (t.name == "output_norm.weight") {
|
||||
found_output_norm = true;
|
||||
}
|
||||
}
|
||||
TEST_ASSERT(found_attn_q, "expected tensor 'blk.0.attn_q.weight'");
|
||||
TEST_ASSERT(found_token_embd, "expected tensor 'token_embd.weight'");
|
||||
TEST_ASSERT(found_output_norm, "expected tensor 'output_norm.weight'");
|
||||
|
||||
// Verify token_embd.weight shape
|
||||
for (const auto & t : model.tensors) {
|
||||
if (t.name == "token_embd.weight") {
|
||||
TEST_ASSERT(t.ne[0] == 1024, "expected token_embd.weight ne[0] == 1024");
|
||||
TEST_ASSERT(t.n_dims == 2, "expected token_embd.weight to be 2D");
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Test that second call uses cache (just call again, it should work)
|
||||
auto result2 = gguf_fetch_model_meta("ggml-org/Qwen3-0.6B-GGUF", "Q8_0");
|
||||
TEST_ASSERT(result2.has_value(), "cached fetch should succeed");
|
||||
TEST_ASSERT(result2->tensors.size() == model.tensors.size(), "cached result should match");
|
||||
|
||||
// Test a split MoE model without specifying quant (should default to Q8_0)
|
||||
auto result3 = gguf_fetch_model_meta("ggml-org/GLM-4.6V-GGUF");
|
||||
if (!result3.has_value()) {
|
||||
fprintf(stderr, "SKIP: could not fetch GLM-4.6V metadata (no network?)\n");
|
||||
return 0;
|
||||
}
|
||||
const auto & model3 = result3.value();
|
||||
|
||||
fprintf(stderr, "Architecture: %s\n", model3.architecture.c_str());
|
||||
fprintf(stderr, "n_embd: %u\n", model3.n_embd);
|
||||
fprintf(stderr, "n_ff: %u\n", model3.n_ff);
|
||||
fprintf(stderr, "n_vocab: %u\n", model3.n_vocab);
|
||||
fprintf(stderr, "n_layer: %u\n", model3.n_layer);
|
||||
fprintf(stderr, "n_head: %u\n", model3.n_head);
|
||||
fprintf(stderr, "n_head_kv: %u\n", model3.n_head_kv);
|
||||
fprintf(stderr, "n_expert: %u\n", model3.n_expert);
|
||||
fprintf(stderr, "n_embd_head_k: %u\n", model3.n_embd_head_k);
|
||||
fprintf(stderr, "n_embd_head_v: %u\n", model3.n_embd_head_v);
|
||||
fprintf(stderr, "tensors: %zu\n", model3.tensors.size());
|
||||
|
||||
// Verify architecture
|
||||
TEST_ASSERT(model3.architecture == "glm4moe", "expected architecture 'glm4moe'");
|
||||
|
||||
// Verify key dimensions (GLM-4.6V)
|
||||
TEST_ASSERT(model3.n_layer == 46, "expected n_layer == 46");
|
||||
TEST_ASSERT(model3.n_embd == 4096, "expected n_embd == 4096");
|
||||
TEST_ASSERT(model3.n_head == 96, "expected n_head == 96");
|
||||
TEST_ASSERT(model3.n_head_kv == 8, "expected n_head_kv == 8");
|
||||
TEST_ASSERT(model3.n_expert == 128, "expected n_expert == 128 (MoE)");
|
||||
TEST_ASSERT(model3.n_vocab == 151552, "expected n_vocab == 151552");
|
||||
|
||||
// Verify tensor count
|
||||
TEST_ASSERT(model3.tensors.size() == 780, "expected tensor count == 780");
|
||||
|
||||
fprintf(stderr, "=== ALL TESTS PASSED ===\n");
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue